Building blocks of Coalition warfare.
From army.mil: “Sgt. Varchulik is the only American Soldier on this firing line. He’s one of about two dozen soldiers from NATO partner nations taking part in a close-quarter battle course (CQB) taught by the International Special Training Centre (ISTC) in Pfullendorf, Germany.
The ISTC training was once exclusively reserved for NATO special operations forces. But the nature of recent conflicts has increased the demand for the advanced combat, survival and medical skills the center teaches. This is particularly the case among conventional U.S. forces, which may experience situations in Iraq and Afghanistan that require unconventional training.”